Shingle-machine



UNITED STATES PATENT OFFICE.

H. D. MCGEORGE, 0F MORGANTOWN, VIRGINIA.

SI-IINGLE-MACHINE.

Specification of Letters' Patent No. 16,742, dated March 3, 1857.

To all whom it may concern.'

Be it known that I, H. D. MCGEORGE, of Morgantown, in the county of Monongalia and State of Virginia, have invented certain new and useful Improvements in Shingle-Machines; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part thereof, in which- Figure 1, represents a perspective View of the machine. Fig. 2, represents a longitudinal vertical section through t-he machine, and Fig. 3 represents a transverse vertical section through it.

Similar letters of reference where they occur in the several figures, denote like parts of the machine in all.

The nature of my invention relates to the combined use of a rocking bed, with adjustments for the thickness, as well as the taper of the shingle, and so that the saw shall cut the shingles butt and point from the bolt.

To enable others skilled in the art to make and use my invention, I will proceed to describe the same with reference to the drawings.

A, represents a bench or table, on which a circular saw B, arranged on the upper end of a vertical shaft C, is hung, said saw and shaft being set in motion by a belt D, coming from any first mover, and passing around the pulley E, on said shaft.

F, is a bed for receiving the bolt from lwhich the shingles are to be cut. This bed is pivoted as seen in Fig. 3, in two pillow blocks G, G, made adjustable in the frame of the table,l by means of the set screws a, a., so that said bed may be raised or lowered, to give the desired thickness to the shingle, while it can be rocked on its pivoted points to form the butts and points alternately from opposite ends of the bolt. To the underside of this rocking bed F, is attached a piece H, in which one end of a pitman I, is secured and made adjustable, the other end of said pitman being similarly united and made adjustable in the lower end of a lever J, which has its fulcrum at b, and extends up through the table in convenient position for the operator. On top of the table are arranged stops c, ci, which are made adjustable by means of slots and set screws, as shown in Fig. 1. The lever J, is moved from one stop to the other, and in so doing the bed F is rocked on its pivots, raising the bolt at one end and lowering it at the other, and thus the shingles are cut from the bolt butt and point alternately, and the amount of taper given to shingle, is regulated by the distance between the stops c, c.

On top of the table, are arranged the ways K, K, which can be moved toward or from each other, by the adjusting pieces L, and set screws (l, passing through slots e therein, for the purpose of making said ways adaptable to a carriage that will hold such length of bolt as the shingles are to be cut from. Upon these ways K, K, a carriage M, slides, which carriage has a pair of dogs f, f, so arranged upon it that they can be thrust into, or drawn out of the bolt at pleasure, by a single lever N, wit-h suitable connecting bars O.

The bolt, from which the shingles are to be cut, is placed on the bed F, which gives it the proper inclination for the taper of the shingle, (the thickness having been previously determined by the elevation of the bed). The dogs f, f, are then thrust into the bolt, which secures the bolt to the carriage, and the carriage and bolt run up to and past the saw-the bed being a directrix to the bolt as it passes up to the saw. Vhen the shingle is sawed off, the carriage and bolt are returned, the lever J, shifted to the other stop c, the dogs drawn out, which allows the bolt to drop onto the bed; this reverses the inclination of the bolt, and the dogs are again thrust into the bolt, the carriage run forward, and so on until the bolt is all sawed up. The length, thickness, and taper of the shingles, are all thus provided for, by a very simple and cheap contrivance.

Having thus fully described the nature of my invention, what I claim therein as new and desire to secure by Letters Patent is- In combination with the saw and carriage, the rocking bed F, for determining, and adjusting the bolt, to t-he thickness, and taper of the shingle to be sawed, substantially as herein set forth.

H. D. MOGEORGE. Witnesses:

EDWARD CLEAR, W. D.'GUSEMAN. 

